How to load a custom attibute to a product collection in the flat mode?

Hi guys,
I have a custom product attribute with code is_hot.
How to filter the Product Collection with this attribute in case the Catalog Product Flat Mode is enabled (
Thanks for help.

  1. Enable the «Used in Product Listing» option for the attribute.

@dmitry_fedyuk: Thanks for your reply :wink: It helps me.